1-4
IM 704210-01E
Pulse Width
≡
For operating procedure, refer to 5.4
≡
The time between a rising (or falling) edge and the next falling (or rising) edge of the input signal
is measured. For selection of combinations of polarity, refer to 5.4, “Setting Pulse Width
Measurement”. A special combination of polarity, in which a time constant T (see section 1.4) is
specified to carry out measurement only when the period of the pulse is within the specified time
range (22T
±
0.5T). This combination is called “22T”. For measurement of pulse width, channel
A or B can be selected.
Measured when
within 22T ±0.5T
Measured when
within 22T ±0.5T
CH A/
CH B
Measured
Measured
Measured
Measured
CH A/
CH B
22T
Example (positive: rising to falling)
Example (22T)
Not measured when
not within 22T ±0.5T
Phase Difference
≡
For operating procedure, refer to 5.5
≡
The time between an edge of the signal input to channel A and an edge of the signal input to
channel B is measured, and the measured value is then expressed in phase difference (deg) in
relation to the period of the signal input to channel A which is set as 360 degrees. This
measurement is available only when time stamp mode is selected as the sampling mode. For a
description of combinations of slopes, refer to 5.5, “Setting Phase Difference Measurement”.
Measuredt
p1
Measuredt
1
Measuredt
2
CH A
CH B
A
B
Example (Both channels A and B: rise)
Measuredt
p2
Duty Ratio
≡
≡
≡
≡
≡
For operating procedure, refer to 5.6
≡
≡
≡
≡
≡
The ratio of the time between a rising (or falling) edge and the next falling (or rising) edge in
relation to one period of the input signal is measured. This measurement is available only when
time stamp mode is selected as the sampling mode. For measurement of duty ratio, channel A or
B can be selected.
Measuredt
p1
Measuredt
1
Measuredt
p2
Measuredt
2
CH A/
CH B
Example (rising to falling)
1.3 Measurement Functions (Measurement Items)
1 [ de g ] =
t
p 1
t
1
×
3 6 0
2 [ de g ] =
t
p 2
t
2
×
3 6 0
Phase difference
Phase difference
1 [
% ] =
t
p 1
t
1
×
1 0 0
Duty ratio
2 [
] =
t
p 2
t
2
×
1 0 0
Duty ratio
%